Load data for .300 Rem. SA Ultra Mag + .308 | 136gr | Geco ZERO

Recommended Powder(s):

Load Specifications

(Use the Personalized Load Calculator below to adjust )

Bullet:	.308 \| 136gr \| Geco ZERO
Manufacturer SKU:	2416070
Bullet Weight:	136gr \| 8.8g
Bullet Diameter:	0.308" \| 7.82mm
Bullet Length:	1.177" \| 29.9mm
Caliber:	.300 Rem. SA Ultra Mag load data
Case Length (l3):	2.003" \| 50.9mm
Cartridge Length (C.O.L.):	2.783" \| 70.7mm
Seated Depth:	0.397" \| 10.1mm
Shank Seated Depth:	0.397" \| 10.1mm
Case Capacity:	74.0 Grains of Water \| 4.80 cm³
Primer Size:	Large Rifle (LR)
Max. allowed Pressure:	64107 psi \| 4420 bar
LID:	LID_B9032_C373
Last updated:	2025-01-01

Load data for 194 loads in caliber .300 Rem. SA Ultra Mag with .308 | 136gr | Geco ZERO bullet and 97 powder(s). The key underlying parameters are shown in the table above.

Important Notice: DO NOT go below Minimum Charge or above Maximum Charge unless there are reasons. Since xxlreloading.com has no control over the equipment and components used by the customer and the data used in connection with the website, any responsibility and liability for the results achieved is rejected. Also see our Terms of Service.

Questions regarding the load data: Please read the information in the next tab "Explanations".
A load must fulfill certain criteria to be listed in the default view below - see "powder criteria to fulfill to be listed".

Our load data might deviate from other sources - see the "most common reasons for deviations".

All loads are based on the bullet and case dimensions shown under "Load Specifications" - see "reloading suggestions" if you deviate.

You can set your specifications in the "Personalized Load Calculator".

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C.O.L. (mm)
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Min z (%)
Min FR (%)
Max FR*
Barrel Length (Inch)
Barrel Length (cm)
Safety Buffer (%)
.
Use the Personalized Load Calculator to customize loads to your own specific requirements. Find more details in the help section.

Our default view only displays powders/loads that fulfill certain criteria: Max pressure of a load <=90% of Max. Standardized Pressure. Fill Rate (Min FR): >80% and <100% for rife loads, >60% and <100% for pistol loads. Min. Propellant Combustion (Min z): >90% for rifle loads , >80% for pistol/revolver loads. Relax these criteria at your own risk to potentially get more powders shown in the load tables.

Click on the desired row in the tables below to add a specific load / powder to your Diary and manage there.

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	92%	56956	89%	**43	99%
ADI AR 2208	<<locked>>	97%	55927	87%	**04	99%
ADI AR 2219	<<locked>>	83%	57029	89%	**14	100%
Accurate 2015	<<locked>>	88%	57232	89%	**51	100%
Accurate 2200	<<locked>>	90%	56797	89%	**00	98%
Accurate 2230	<<locked>>	86%	57014	89%	**94	100%
Accurate 2460	<<locked>>	86%	56753	89%	**97	100%
Accurate 2495	<<locked>>	91%	56695	88%	**17	100%
Accurate 2520	<<locked>>	90%	57116	89%	**43	100%
[Accurate 2700]*	<<locked>>	97%	55274	86%	**12	94%
Accurate 4064	<<locked>>	97%	56391	88%	**30	100%
Accurate 4350	<<locked>>	97%	41655	65%	**33	95%
Alliant AR-Comp	<<locked>>	91%	57232	89%	**10	100%
Alliant Reloder- TS 15.5	<<locked>>	97%	55114	86%	**33	100%
Alliant Reloder-10x	<<locked>>	86%	57145	89%	**68	100%
Alliant Reloder-15	<<locked>>	96%	57217	89%	**76	99%
Alliant Reloder-16	<<locked>>	97%	42090	66%	**36	95%
Alliant Reloder-17	<<locked>>	97%	48863	76%	**20	99%
Baschieri & Pellagri 106	<<locked>>	84%	56797	89%	**95	100%
Baschieri & Pellagri 107	<<locked>>	92%	56942	89%	**59	98%
Hodgdon BL-C2 👍	<<locked>>	91%	57406	90%	**73	100%
Hodgdon Benchmark	<<locked>>	90%	57580	90%	**77	100%
Hodgdon CFE223	<<locked>>	96%	57276	89%	**05	99%
Hodgdon H322	<<locked>>	89%	57029	89%	**14	100%
Hodgdon H335	<<locked>>	84%	57145	89%	**27	100%
Hodgdon H380	<<locked>>	97%	56956	89%	**53	98%
[Hodgdon H414]*	<<locked>>	97%	49995	78%	**81	94%
Hodgdon H4198	<<locked>>	83%	57537	90%	**31	100%
Hodgdon Hybrid 100V	<<locked>>	97%	38232	60%	**22	96%
Hodgdon LVR	<<locked>>	97%	46311	72%	**99	95%
Hodgdon VARGET	<<locked>>	97%	54665	85%	**84	98%
Hodgdon TrailBoss	<<locked>>	96%	32677	51%	**64	100%
IMR 3031	<<locked>>	96%	57319	89%	**66	100%
IMR 4064	<<locked>>	97%	54360	85%	**71	99%
IMR 4166 Enduron	<<locked>>	97%	53969	84%	**31	95%
IMR 4198	<<locked>>	86%	56927	89%	**22	100%
[IMR 4451 Enduron]*	<<locked>>	97%	51634	81%	**18	94%
[IMR 4831]*	<<locked>>	97%	35984	56%	**79	93%
IMR 4895 👍	<<locked>>	95%	56826	89%	**82	99%
IMR 8208 XBR	<<locked>>	91%	57130	89%	**17	100%
Lovex D073.4	<<locked>>	85%	57392	90%	**97	100%
Lovex D073.5	<<locked>>	87%	57479	90%	**04	100%
Lovex D073.6 👍	<<locked>>	93%	57609	90%	**46	100%
Lovex S060	<<locked>>	92%	57450	90%	**81	99%
Lovex S062	<<locked>>	96%	57363	89%	**30	100%
Lovex S065	<<locked>>	97%	47587	74%	**53	95%
[Lovex S070]*	<<locked>>	97%	44657	70%	**10	93%
Norma 201	<<locked>>	93%	56927	89%	**20	100%
Norma 202	<<locked>>	93%	57174	89%	**23	100%
Norma 203B	<<locked>>	96%	57261	89%	**73	99%
Norma URP	<<locked>>	97%	42163	66%	**30	95%
Ramshot Big Game	<<locked>>	96%	57087	89%	**86	99%
[Ramshot Hunter]*	<<locked>>	97%	41974	65%	**13	92%
Ramshot TAC	<<locked>>	90%	57319	89%	**14	97%
Ramshot Wild Boar 👍	<<locked>>	91%	57682	90%	**66	99%
Ramshot X-Terminator	<<locked>>	88%	56971	89%	**97	99%
ReloadSwiss RS 14	<<locked>>	96%	33127	52%	**09	100%
ReloadSwiss RS 40	<<locked>>	87%	57159	89%	**14	100%
ReloadSwiss RS 50	<<locked>>	97%	57232	89%	**17	96%
ReloadSwiss RS 52 👍	<<locked>>	96%	57363	89%	**05	100%
ReloadSwiss RS 60	<<locked>>	97%	47558	74%	**04	99%
ReloadSwiss RS 62	<<locked>>	97%	41945	65%	**56	95%
[ReloadSwiss RS 70]*	<<locked>>	97%	42873	67%	**63	94%
Rottweil R 901	<<locked>>	91%	57319	89%	**94	100%
Rottweil R 902	<<locked>>	95%	57551	90%	**07	100%
Rottweil R 903	<<locked>>	97%	51213	80%	**68	99%
[Rottweil R 907]*	<<locked>>	97%	49806	78%	**76	93%
SNPE Vectan SP 10	<<locked>>	83%	57377	89%	**23	100%
SNPE Vectan SP 11	<<locked>>	97%	53867	84%	**46	99%
SNPE Vectan SP 7	<<locked>>	91%	57348	89%	**20	98%
SNPE Vectan SP 9	<<locked>>	93%	57159	89%	**40	99%
SNPE Vectan Tubal 3000	<<locked>>	92%	57551	90%	**45	100%
SNPE Vectan Tubal 5000	<<locked>>	97%	55347	86%	**02	100%
[SNPE Vectan Tubal 7000]*	<<locked>>	97%	47094	73%	**90	93%
Shooters World Long Rifle	<<locked>>	97%	47587	74%	**53	95%
Shooters World Match Rifle	<<locked>>	93%	57609	90%	**46	100%
Shooters World Precision	<<locked>>	96%	57363	89%	**30	100%
Shooters World Tactical Rifle	<<locked>>	85%	57217	89%	**77	100%
Somchem S321	<<locked>>	88%	57334	89%	**36	100%
Somchem S335	<<locked>>	92%	57261	89%	**41	100%
Somchem S341	<<locked>>	92%	57334	89%	**23	99%
Somchem S355	<<locked>>	97%	52504	82%	**77	99%
Somchem S365	<<locked>>	97%	37565	59%	**67	97%
Vihtavuori N120	<<locked>>	83%	56898	89%	**43	100%
Vihtavuori N130	<<locked>>	89%	57014	89%	**09	100%
Vihtavuori N133	<<locked>>	94%	56927	89%	**28	100%
Vihtavuori N135	<<locked>>	97%	49400	77%	**79	100%
Vihtavuori N140	<<locked>>	95%	57290	89%	**94	100%
Vihtavuori N150	<<locked>>	97%	43961	69%	**94	99%
Vihtavuori N160	<<locked>>	97%	47007	73%	**79	96%
Vihtavuori N530	<<locked>>	89%	57029	89%	**27	100%
Vihtavuori N540	<<locked>>	95%	56840	89%	**14	100%
Vihtavuori N550	<<locked>>	97%	47137	74%	**35	96%
Winchester 6.5 StaBALL	<<locked>>	97%	45788	71%	**27	98%
Winchester 748	<<locked>>	88%	56695	88%	**66	100%
[Winchester 760]*	<<locked>>	97%	49995	78%	**81	94%
Winchester StaBALL Match	<<locked>>	86%	57319	89%	**56	100%

Max Load - Barrel Length: 23.60''

Powder	Charge	FR	MaxP	%	V(0)	z
ADI AR 2206H	<<locked>>	81%	39987	62%	**25	96%
[ADI AR 2208]*	<<locked>>	81%	33852	53%	**54	93%
ADI AR 2219	<<locked>>	81%	52475	82%	**48	100%
Accurate 2015	<<locked>>	81%	45484	71%	**67	100%
Accurate 2200	<<locked>>	81%	42177	66%	**28	95%
Accurate 2230	<<locked>>	81%	47427	74%	**33	98%
Accurate 2460	<<locked>>	81%	47718	74%	**43	99%
Accurate 2495	<<locked>>	81%	40263	63%	**38	100%
Accurate 2520	<<locked>>	81%	40886	64%	**54	99%
[Accurate 2700]*	<<locked>>	89%	42873	67%	**92	90%
Accurate 4064	<<locked>>	81%	33866	53%	**03	98%
[Accurate 4350]*	<<locked>>	88%	30661	48%	**61	90%
Alliant AR-Comp	<<locked>>	81%	40915	64%	**58	100%
Alliant Reloder- TS 15.5	<<locked>>	81%	33170	52%	**80	95%
Alliant Reloder-10x	<<locked>>	81%	49226	77%	**46	100%
[Alliant Reloder-15]*	<<locked>>	81%	35694	56%	**46	94%
[Alliant Reloder-16]*	<<locked>>	88%	32300	50%	**80	90%
[Alliant Reloder-17]*	<<locked>>	81%	28819	45%	**02	90%
Baschieri & Pellagri 106	<<locked>>	81%	51198	80%	**20	100%
[Baschieri & Pellagri 107]*	<<locked>>	81%	38870	61%	**08	94%
Hodgdon BL-C2	<<locked>>	81%	40814	64%	**74	98%
Hodgdon Benchmark	<<locked>>	81%	44280	69%	**51	99%
[Hodgdon CFE223]*	<<locked>>	81%	34156	53%	**23	92%
Hodgdon H322	<<locked>>	81%	44222	69%	**00	100%
Hodgdon H335	<<locked>>	81%	51924	81%	**38	100%
[Hodgdon H380]*	<<locked>>	81%	33663	53%	**67	91%
[Hodgdon H414]*	<<locked>>	89%	39189	61%	**48	90%
Hodgdon H4198	<<locked>>	81%	53882	84%	**76	100%
[Hodgdon Hybrid 100V]*	<<locked>>	86%	27630	43%	**16	90%
[Hodgdon LVR]*	<<locked>>	87%	33344	52%	**94	90%
[Hodgdon VARGET]*	<<locked>>	81%	33663	53%	**51	93%
Hodgdon TrailBoss	<<locked>>	81%	26034	41%	**09	100%
IMR 3031	<<locked>>	81%	35839	56%	**76	100%
[IMR 4064]*	<<locked>>	81%	33373	52%	**31	93%
[IMR 4166 Enduron]*	<<locked>>	86%	39291	61%	**36	90%
IMR 4198	<<locked>>	81%	49951	78%	**17	100%
[IMR 4451 Enduron]*	<<locked>>	88%	39552	62%	**66	90%
[IMR 4831]*	<<locked>>	92%	30908	48%	**38	90%
IMR 4895	<<locked>>	81%	36579	57%	**79	95%
IMR 8208 XBR	<<locked>>	81%	42047	66%	**44	98%
Lovex D073.4	<<locked>>	81%	49734	78%	**72	100%
Lovex D073.5	<<locked>>	81%	47282	74%	**36	99%
Lovex D073.6	<<locked>>	81%	38537	60%	**05	98%
Lovex S060	<<locked>>	81%	40538	63%	**66	96%
Lovex S062	<<locked>>	81%	35230	55%	**97	96%
[Lovex S065]*	<<locked>>	87%	34592	54%	**67	90%
[Lovex S070]*	<<locked>>	92%	38029	59%	**66	90%
Norma 201	<<locked>>	81%	39175	61%	**85	97%
Norma 202	<<locked>>	81%	39305	61%	**05	99%
[Norma 203B]*	<<locked>>	81%	35230	55%	**36	94%
[Norma URP]*	<<locked>>	88%	31865	50%	**74	90%
[Ramshot Big Game]*	<<locked>>	81%	34577	54%	**33	94%
[Ramshot Hunter]*	<<locked>>	93%	37028	58%	**92	90%
[Ramshot TAC]*	<<locked>>	81%	41989	66%	**31	93%
Ramshot Wild Boar	<<locked>>	81%	41234	64%	**58	96%
Ramshot X-Terminator	<<locked>>	81%	45847	72%	**97	97%
ReloadSwiss RS 14	<<locked>>	81%	26542	41%	**59	100%
ReloadSwiss RS 40	<<locked>>	81%	47297	74%	**46	100%
[ReloadSwiss RS 50]*	<<locked>>	83%	37202	58%	**30	90%
ReloadSwiss RS 52	<<locked>>	81%	33446	52%	**30	96%
[ReloadSwiss RS 60]*	<<locked>>	81%	28123	44%	**69	90%
[ReloadSwiss RS 62]*	<<locked>>	89%	32445	51%	**07	90%
[ReloadSwiss RS 70]*	<<locked>>	92%	36680	57%	**02	90%
Rottweil R 901	<<locked>>	81%	43062	67%	**48	99%
Rottweil R 902	<<locked>>	81%	37188	58%	**23	97%
[Rottweil R 903]*	<<locked>>	81%	30356	47%	**05	93%
[Rottweil R 907]*	<<locked>>	91%	41597	65%	**15	90%
SNPE Vectan SP 10	<<locked>>	81%	53011	83%	**51	100%
[SNPE Vectan SP 11]*	<<locked>>	81%	31734	49%	**54	92%
[SNPE Vectan SP 7]*	<<locked>>	81%	39943	62%	**99	94%
SNPE Vectan SP 9	<<locked>>	81%	38435	60%	**85	95%
SNPE Vectan Tubal 3000	<<locked>>	81%	40785	64%	**49	99%
SNPE Vectan Tubal 5000	<<locked>>	81%	33359	52%	**95	99%
[SNPE Vectan Tubal 7000]*	<<locked>>	91%	38305	60%	**17	90%
[Shooters World Long Rifle]*	<<locked>>	87%	34592	54%	**67	90%
Shooters World Match Rifle	<<locked>>	81%	38537	60%	**05	98%
Shooters World Precision	<<locked>>	81%	35230	55%	**97	96%
Shooters World Tactical Rifle	<<locked>>	81%	50328	79%	**69	99%
Somchem S321	<<locked>>	81%	45208	71%	**30	99%
Somchem S335	<<locked>>	81%	40379	63%	**53	100%
Somchem S341	<<locked>>	81%	39537	62%	**99	96%
[Somchem S355]*	<<locked>>	81%	31633	49%	**25	93%
[Somchem S365]*	<<locked>>	85%	25425	40%	**93	90%
Vihtavuori N120	<<locked>>	81%	53359	83%	**90	100%
Vihtavuori N130	<<locked>>	81%	45527	71%	**31	100%
Vihtavuori N133	<<locked>>	81%	38406	60%	**10	100%
Vihtavuori N135	<<locked>>	81%	30530	48%	**85	99%
Vihtavuori N140	<<locked>>	81%	36767	57%	**23	99%
[Vihtavuori N150]*	<<locked>>	81%	26832	42%	**67	93%
[Vihtavuori N160]*	<<locked>>	85%	31691	49%	**28	90%
Vihtavuori N530	<<locked>>	81%	44498	69%	**13	98%
Vihtavuori N540	<<locked>>	81%	36158	56%	**30	98%
[Vihtavuori N550]*	<<locked>>	85%	31705	49%	**64	90%
[Winchester 6.5 StaBALL]*	<<locked>>	82%	27891	44%	**77	90%
Winchester 748	<<locked>>	81%	44425	69%	**49	99%
[Winchester 760]*	<<locked>>	89%	39189	61%	**48	90%
Winchester StaBALL Match	<<locked>>	81%	47166	74%	**86	98%

Start Load - Barrel Length: 23.60''

Any powder missing? Then click here.

FR ... fill rate of the cartridge in percent

MaxP ... max. pressure of load in psi or bar

% ... max. pressure of load in percent of the maximum allowed pressure for this caliber

V(0) ... muzzle velocity in feet per second (fps) or meters per second (m/s)

z ... powder burnt in percent

[...] *... not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.

[...] ²... fill rate low - you might want to consider using a filler to ensure proper ignition.

[...] ᴾ... possible press load - work up slowly to this load while watching for signs of excessive pressure.

👍 ... recommended powder/load for this caliber and bullet combination based on its ballistic performance.